Welding wire
ER4043 aluminium MIG wire
A silicon-alloyed filler option for many weldable 6xxx alloys and cast aluminium parts.
- Classification
- AWS A5.10: ER4043; EN ISO 18273: AlSi5 family
- Processes
- MIG (GMAW)
- Materials
- Compatible 6xxx aluminium alloys · Compatible aluminium castings
How to choose it
Identify the actual base alloy before choosing 4043. The manufacturer describes a fluid pool and reduced cracking sensitivity on compatible 6xxx alloys.
Limits and product details
Aluminium fillers are not interchangeable across every alloy. Check the alloy chart, service conditions and finish requirement.
Additional details
- Form
- Solid aluminium wire
- Shielding
- Argon or a qualified argon/helium blend
- Family
- Aluminium-silicon filler, approximately 5% silicon
- Example source
- Lincoln Electric SuperGlaze MIG 4043, catalogue page 145
References
Information checked 2026-10-14.
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- Product information · Form · Shielding · Family · Example sourceOpens the source in a new tabch-delivery.lincolnelectric.comLink checked · 31 Oct